A clamp and conveying system

Abstract

The present invention provides a clamp and a conveying system, wherein the clamp includes a fixed component and a linkage assembly. The clamping part and the execution part are spaced apart and hingedly arranged on the fixed component respectively; one end of the linkage assembly is hingedly connected to the execution part, and the other end is hingedly connected to the clamping part; the linkage assembly is suitable for transmitting the driving force of the execution part to the clamping part, thereby driving the clamping part to open and close; when the clamping part is in the open state, the angle of the two clamping arms is not less than 180°. When the clamp is in use, multiple clamps are fixed on the conveying steel belt at intervals. During the black hole treatment stage, the clamping part of the electroplating special clamp is opened to prevent the clamping part from being stained with black hole liquid. During the electroplating stage, the product is clamped by the clamping part of the electroplating special clamp. The clamping part of the electroplating special clamp is not stained with black hole liquid during the black hole treatment stage, and the clamping part will not be electroplated with a coating during electroplating, so the clamp can be used for a long time.

Description

Technical Field

[0001] The present invention relates to the technical field of clamping instruments, and in particular to a clamp and a conveying system. Background Art

[0002] Some products with open holes require a black hole treatment before electroplating, meaning the black hole treatment process precedes the electroplating process. In a continuous electroplating line, the product continuously passes through the black hole treatment solution during the black hole treatment phase and the electroplating solution during the electroplating phase. A fixture is fixed to a steel belt and moves with it. The fixture grips the product, and the chuck is immersed in the black hole solution and moves. As the steel belt continues to move, the fixture removes the product from the black hole solution and continues to transport it to the electroplating station for electroplating.

[0003] The existing clamp consists of two vertically extending chucks. When clamping a product, the two chucks are closed; when the clamp is opened, the two chucks move away from each other. In both the closed and open states, the two chucks are in a vertically extended state. During the electroplating process, the clamp holds the product and moves it within the plating tank. Similarly, the product must be completely immersed in the plating solution, which means that the chucks also need to be completely immersed in the plating solution. Since the chucks will be contaminated by the black hole liquid during the electroplating process, the clamping position of the chucks that have been contaminated by the black hole liquid will be electroplated to form a coating during the electroplating process. Once the coating becomes thick, it can no longer effectively clamp the product, and the clamp will be scrapped. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art that the chuck is always in a vertically extended state during the black hole treatment process, the chuck is easily stained with black hole liquid, and a coating will be formed at the clamping position during electroplating, causing the fixture to be scrapped.

[0005] To this end, the present invention provides a clamp having a clamping portion and an execution portion for driving the clamping portion to open and close; the clamping portion includes two clamping arms arranged opposite to each other; and further includes

[0006] The clamping portion and the executing portion are spaced apart and hingedly arranged on the fixing component respectively;

[0007] a linkage assembly, one end of which is hingedly connected to the actuator and the other end of which is hingedly connected to the clamping portion; the linkage assembly is adapted to transmit the driving force of the actuator to the clamping portion, thereby driving the clamping portion to open and close;

[0008] When the clamping portion is in an open state, the opening angle of the two clamping arms is not less than 180°.

[0009] Optionally, the above-mentioned clamp, the linkage assembly includes

[0010] a first linkage member, hinged to the execution portion;

[0011] The second linkage member has one end hingedly connected to the first linkage member and the other end hingedly connected to the clamping portion.

[0012] Optionally, in the above-mentioned clamp, there are two second linkage members, one end of the two second linkage members is hingedly connected to the first linkage member, and the other end is hingedly connected to the two clamping arms respectively.

[0013] Optionally, in the above-mentioned clamp, the fixing component has two mounting portions arranged opposite to each other; the linkage assembly further includes

[0014] The first connecting shaft is arranged across the two mounting parts, and the ends of the first linkage member and the second linkage member that are close to each other are respectively hingedly connected to the first connecting shaft; the first linkage member is driven by the driving force of the execution part to rotate toward the clamping part, and drives the first connecting shaft to move toward the clamping part, and the first connecting shaft drives the second linkage member to move toward the clamping part to drive the clamping part to open.

[0015] Optionally, in the clamp described above, the clamp arm includes

[0016] A connecting arm extending in the same direction as the fixing component;

[0017] The clamping arm is connected to an end of the connecting arm away from the fixing component, and the clamping arm extends toward the connecting arm opposite thereto.

[0018] Optionally, the above-mentioned fixture further includes

[0019] a guide member provided on the mounting portion; and

[0020] A matching portion is provided on the first connecting shaft and matches with the guide member; the matching portion is plugged into or clipped onto the guide member, and the guide member cooperates with the matching portion to guide the movement of the first connecting shaft.

[0021] Optionally, in the above-mentioned clamp, the guide member is a waist hole opened on the two mounting parts, and the two ends of the first connecting shaft are respectively inserted into the waist hole; the length of the waist hole satisfies that when the first connecting shaft runs to the waist hole close to the end face of one end of the clamping part, the opening angle of the two clamping arms is 180°.

[0022] Optionally, the fixture mentioned above, the fixing component further includes

[0023] The fixing portion is arranged between the two mounting portions; the executing portion is hinged on the fixing portion.

[0024] Optionally, the clamp further comprises a locking component provided on the fixing portion and / or the executing portion, wherein the locking component is used to position the executing portion on the fixing portion when the clamping portion is in a closed state.

[0025] Optionally, in the above-mentioned clamp, the locking component is two magnets, and the two magnets are respectively provided on the fixing part and the executing part.

[0026] Optionally, the clamp further comprises a rotating member rotatably connected to the executing portion, wherein the rotating member is adapted to be driven by the guide plate to move the magnet provided on the executing portion away from the magnet provided on the fixed portion.

[0027] The present invention provides a conveying system, comprising a plurality of the clamps described in any one of the above and a conveyor belt, wherein the plurality of clamps are arranged on the conveyor belt at intervals.

[0028] The technical solution of the present invention has the following advantages:

[0029] 1. The clamp provided by the present invention is used to fix multiple clamps on the conveyor steel belt at intervals. During the black hole treatment stage, for example, some clamps are used to clamp the product for black hole treatment. The clamps are black hole clamps, and the remaining clamps are electroplating clamps. The clamping parts such as the manipulator drive the execution part of the electroplating clamp to rotate toward the clamping part. The rotation of the execution part drives the linkage assembly to move toward the clamping part. The linkage assembly drives the two clamp arms to rotate upward and unfold. The opening angle of the two clamp arms is greater than or equal to 1 80°, the two clamping arms are rotated to a horizontal state or above the horizontal state to keep the clamping part away from the black hole liquid surface below to avoid the clamping part being stained with the black hole liquid. After the black hole treatment is completed, the black hole fixture is opened and passes through the inspection mechanism. For example, the product is removed by a manipulator and switched to a special electroplating fixture. The product is clamped by the clamping part of the special electroplating fixture. The clamping part of the special electroplating fixture is not stained with the black hole liquid during the black hole treatment stage. The clamping part will not be electroplated with a coating during electroplating, and the fixture can be used for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 A schematic diagram of the three-dimensional structure of the clamping portion of the clamp in the closed state provided in Example 1 of the present invention;

[0032] Figure 2A side view of the clamping portion of the clamp provided in Example 1 of the present invention in a closed state;

[0033] Figure 3 A schematic diagram of the three-dimensional structure of the clamping portion of the clamp in the closed state provided in Example 1 of the present invention;

[0034] Figure 4 This is a schematic diagram of the clamp provided in Example 1 of the present invention after the fixing components are removed;

[0035] Figure 5 A schematic diagram of a fixing component in a clamp provided in Example 1 of the present invention;

[0036] Figure 6 This is a schematic diagram of the three-dimensional structure of the clamping part of the clamp provided in Example 1 of the present invention in the open state.

[0037] Description of reference numerals:

[0038] 11-connecting arm; 12-clamping arm; 2-executing part; 3-fixing part; 31-installing part; 311-guide part; 32-fixing part; 41-first linkage part; 42-second linkage part; 43-first connecting shaft; 5-locking part; 6-rotating part. DETAILED DESCRIPTION

[0039] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0042] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0043] Example 1

[0044] This embodiment provides a clamp, such as Figures 1 to 6 As shown, it comprises a clamping portion and an actuator 2 that drives the clamping portion to open and close; the clamping portion comprises two clamping arms arranged opposite each other; the clamp further comprises a fixing member 3 and a linkage assembly. The clamping portion and the actuator 2 are spaced apart and hingedly mounted on the fixing member 3; the linkage assembly is hingedly connected to the actuator 2 at one end and to the clamping portion at the other end; the linkage assembly is adapted to transmit the driving force of the actuator 2 to the clamping portion, thereby driving the clamping portion to open and close; when the clamping portion is in the open state, the two clamping arms are opened at an angle of no less than 180°.

[0045] When the clamp of this structure is used, multiple clamps are fixed at intervals on the conveyor steel belt. In the black hole treatment stage, for example, some clamps are used to clamp the product for black hole treatment. These clamps are black hole clamps, and the remaining clamps are special clamps for electroplating. The executive part 2 of the special clamp for electroplating is driven to rotate toward the clamping part by a clamping component such as a manipulator. The rotation of the executive part 2 drives the linkage component to move toward the clamping part. The linkage component drives the two clamp arms to rotate and unfold upward. The opening angle of the two clamp arms is greater than or equal to 180°. The two clamp arms are rotated to a horizontal state or above the horizontal state to keep the clamping part away from the black hole liquid surface below to avoid the clamping part from being stained with black hole liquid. After the black hole treatment is completed, the black hole clamp is opened and the product is removed by the intermediate inspection mechanism, for example, by the manipulator and switched to the special clamp for electroplating. The product is clamped by the clamping part of the special clamp for electroplating. The clamping part of the special clamp for electroplating is not stained with black hole liquid during the black hole treatment stage. The clamping part will not be electroplated with a coating during electroplating, and the clamp can be used for a long time.

[0046] Furthermore, the linkage assembly includes a first linkage member 41, a second linkage member 42, and a first connecting shaft 43. The first linkage member 41 is hingedly connected to the actuator 2; the second linkage member 42 is hingedly connected to the first linkage member 41 at one end and to the clamping portion at the other end. Optimally, there are two second linkage members 42, each hingedly connected to the first linkage member 41 at one end and hingedly connected to the two clamping arms at the other end.

[0047] The fixing member 3 comprises two opposing mounting portions 31 and a fixing portion 32 disposed between the two mounting portions 31. The two mounting portions 31 are identical in shape and structure, both being plate-shaped and extending vertically. The two mounting portions 31 extend from the top of the fixing portion 32, and are symmetrically located on either side of the width of the fixing portion 32. The bottom of the mounting portion 31 extends outward along both sides of its width to form a protrusion. The first connecting shaft 43 is inserted through the mounting portion 31 at the top of the protrusion.

[0048] The ends of the first linkage member 41 and the second linkage member 42 that are close to each other are respectively hingedly connected to the first connecting shaft 43, so that the first linkage member 41 and the second linkage member 42 form a hinged connection; the first linkage member 41 is driven by the driving force of the execution part 2 to rotate toward the clamping part, and drives the first connecting shaft 43 to move toward the clamping part, and the first connecting shaft 43 drives the second linkage member 42 to move toward the clamping part to drive the clamping part to open.

[0049] See also Figure 1 Each clamping arm includes a connecting arm 11 and a clamping arm 12. The connecting arm 11 is extended in the same direction as the fixing part 3, the clamping arm 12 is connected to one end of the connecting arm 11 away from the fixing part 3, and the clamping arm 12 extends toward the connecting arm 11 opposite thereto. Specifically, two second connecting shafts are provided on the protruding part of the mounting part 31, and the connecting arm 11 is provided with a first sleeve portion near the top of the fixing part 3. The first sleeve portion is sleeved outside the second connecting shaft and hinged on the mounting part 31. A first connecting portion extending toward the inner side of the mounting part 31 is provided on the first sleeve portion. When the clamping part is closed, the second linkage 42 first extends vertically from the first connecting shaft 43 to the bottom of the mounting part 31, and then bends toward the first connecting portion outside thereof to form a bent portion. The third connecting shaft passes through the bent portion and the first connecting portion to hinge the clamping arm on the second linkage 42. Optimally, each first sleeve portion has two first connection portions, the two first connection portions are clamped on the outside of the bending portion, and the third connecting shaft passes through the bending portion and the two first connection portions. The clamping arm is well connected to the second linkage member 42 and can rotate stably following the second linkage member 42. At the same time, when the clamping portion is closed, the clamping arm can be stably supported to ensure the clamping strength and effect.

[0050] Furthermore, the fixture further includes a guide member 311 provided on the mounting portion 31 and a mating portion provided on the first connecting shaft 43 and mating with the guide member 311. The mating portion is plugged or snapped onto the guide member 311, and the guide member 311 and the mating portion cooperate to guide the movement of the first connecting shaft. For example, see Figure 1 Figure 3 The guide member 311 is a waist hole opened on the two mounting parts 31, and the two ends of the first connecting shaft 43 are respectively inserted into the waist hole as matching parts. The waist hole length satisfies the requirement that when the first connecting shaft 43 runs to the waist hole close to the end face of one end of the clamping part (i.e. Figure 1 The two clamping arms are open at an angle of 180°. In the closed position, the connecting arm 11 and the mounting portion 31 extend in the same direction. The connecting arm 11 can be horizontally rotated 90°. Compared with the two connecting arms 11 arranged in a V-shaped angle at the bottom of the mounting portion 31, the connecting arm 11 can be rotated to the horizontal position with a smaller angle, preventing the occurrence of a rotational dead point and facilitating the reset of the clamping arms.

[0051] See also Figure 1 、 Figure 3 and Figure 4 , the outer wall of the connecting arm 11 is an arc surface, and the bottom width is smaller than the top width, so that the black hole liquid, electroplating liquid and other liquids on the connecting part can slide off automatically. The clamping arm 12 is integrally formed with the connecting arm 11, and the end surface of the clamping arm 12 away from the connecting arm 11 is the clamping surface. In the clamping state of the clamping part, the two clamping arms are closed, and the two connecting arms 11 extend vertically toward the bottom of the second connecting shaft and are parallel to each other. In the open state of the clamping part, the linkage assembly drives the clamping arm to rotate, and the first linkage part 41 drives the first connecting shaft 43 to slide down along the waist hole to the bottom of the waist hole, and the two connecting arms 11 are opened at an angle of 180°.

[0052] The actuator 2 and the first connecting member are both plate-shaped. One end of the actuator 2 is hinged to the fixing portion 32 at the top of the mounting portion 31 via a fourth connecting axis, with the other end extending outward from the fixing portion 32. The first linkage member 41 has a recessed portion near the actuator 2, which snaps onto the outside of the actuator 2. A fifth connecting axis passes through the first linkage member 41 and the actuator 2, hingedly connecting them. Optionally, the first connecting axis 43, the second connecting axis, the third connecting axis, the fourth connecting axis, and the fifth connecting axis are all rivets.

[0053] See also Figures 1 to 3 The clamp further includes a locking member 5 provided on the fixing portion 32 and / or the executing portion 2. The locking member 5 is used to position the executing portion 2 on the fixing portion 32 when the clamping portion is in the closed state. For example, the locking member 5 is two magnets, which are respectively fixed on the fixing portion 32 and the executing portion 2.

[0054] The fixture further includes a rotating member 6 rotatably connected to an end of the actuator 2 away from the fixed portion 32. For example, the rotating member 6 is a thumbwheel that is sleeved on the actuator 2. The rotating member 6 is adapted to be driven by the guide plate to move the magnet provided on the actuator 2 away from the magnet provided on the fixed portion 32.

[0055] The guide plate is a wedge-shaped plate fixed to the motion path of the rotating member 6 within the clamping area. Along the motion path of the rotating member 6, the width of the wedge plate gradually increases. The rotating member 6 moves along the guide plate and is gradually pushed outward and downward by the guide plate, away from the magnet on the fixed portion 32, thereby unlocking the actuator 2. Alternatively, the actuator 2 can be driven downward by a manipulator to rotate to open the clamp. The downward rotation of the actuator 2 drives the first linkage 41 to rotate toward the second linkage 42, and drives the first connecting shaft 43 to slide downward along the waist hole. The first connecting shaft 43 drives the second linkage 42 to move downward and press the first connecting portion. The first connecting portion rotates downward and simultaneously drives the first sleeve portion and the connecting arm 11 to rotate. The two connecting arms 11 rotate in opposite directions. When the first connecting shaft 43 reaches the bottom of the waist hole, the first linkage 41 stops pressing the first connecting portion, and the two connecting arms 11 open 180° and lock in this position. When the clamp needs to clamp the product again, the manipulator can drive the actuator 2 to rotate upward to close the clamp.

[0056] As a first alternative embodiment to Example 1, the locking component 5 may further include a socket provided on the fixing portion 32 and a shaft protruding from the actuator 2. When the clamp is closed, the shaft is inserted and fixed in the socket to position the actuator 2. To open the clamp, the actuator 2 can be moved away from the socket by a manipulator, disengaging the shaft from the socket and unlocking the actuator 2.

[0057] As a second alternative to Example 1, the guide member 311 can also be a slotted hole provided on the mounting portion 31, with the first connecting shaft 43 extending through each of the slotted holes. Alternatively, the guide member 311 can be a strip-shaped protrusion protruding from the inner wall of the mounting portion 31, with the first connecting shaft 43 having recessed engaging portions at each end. These engaging portions engage the strip-shaped protrusion and slide up and down along the protrusion. The strip-shaped protrusion has a greater width at its top and bottom than its mid-width, thereby providing upper and lower position limits for the first connecting shaft 43.

[0058] As a third alternative embodiment of Example 1, only one second linkage member 42 may be provided. For example, the second linkage member 42 may be in an inverted "V" shape, with its top connected to the first linkage member 41 and its two bottom ends connected to the clamping arms. The second linkage member 42 moves downward, driving the first linkage member 41 downward. The first linkage member 41 presses the clamping arms, causing the two clamping arms to rotate in opposite directions. As a variation, only the first linkage member 41 may be provided. The first linkage member 41 is directly hinged to the two clamping arms. When driven by the downward driving force of the actuator 2, the first linkage member 41 presses the clamping arms downward, causing the two clamping arms to rotate in opposite directions.

[0059] Example 2

[0060] This embodiment provides a conveying system, which includes multiple clamps and a conveyor belt according to embodiment 1, wherein the multiple clamps are arranged on the conveyor belt at intervals.

[0061] During the black hole treatment stage, some fixtures are used to hold the product for black hole treatment. These fixtures are black hole fixtures, while the remaining fixtures are dedicated electroplating fixtures. For example, the first, third, fifth, and seventh odd-numbered fixtures arranged in sequence on the conveyor belt are black hole fixtures, while the second, fourth, sixth, and eighth even-numbered fixtures are black hole fixtures. During the black hole treatment stage, the clamp arms of the dedicated electroplating fixtures are open upward to avoid contact with the black hole solution. During the electroplating process, the clamp arms of the dedicated electroplating fixtures close again to hold the product. During the electroplating process, the clamp arms of the dedicated electroplating fixtures are protected from plating, extending the service life of the fixtures.

[0062] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A clamp comprising a clamping portion and an actuator (2) for driving the clamping portion to open and close; the clamping portion comprises two clamping arms arranged opposite to each other; and characterized in that: Also includes A fixing component (3); the clamping portion and the executing portion (2) are spaced apart and respectively hingedly arranged on the fixing component (3); A linkage assembly, one end of which is hingedly connected to the execution part (2) and the other end of which is hingedly connected to the clamping part; the linkage assembly is suitable for transmitting the driving force of the execution part (2) to the clamping part, thereby driving the clamping part to open and close; When the clamping portion is in an open state, the angle at which the two clamping arms are opened is not less than 180°; The fixing component (3) has two mounting portions (31) arranged opposite to each other; The fixing component (3) further comprises a fixing portion (32), wherein the fixing portion (32) is arranged between the two mounting portions (31); the execution portion (2) is hinged on the fixing portion (32); the linkage assembly comprises A first linkage member (41) is hinged to the execution portion (2); A second linkage member (42) has one end hingedly connected to the first linkage member (41) and the other end hingedly connected to the clamping portion; the second linkage members (42) have two ends, one end of the two second linkage members (42) is hingedly connected to the first linkage member (41), and the other end is hingedly connected to the two clamping arms; the linkage assembly also includes The first connecting shaft (43) is arranged across the two mounting parts (31), and the ends of the first linkage member (41) and the second linkage member (42) close to each other are respectively hingedly connected to the first connecting shaft (43); the first linkage member (41) is driven by the driving force of the execution part (2) to rotate toward the clamping part, and drives the first connecting shaft (43) to move toward the clamping part, and the first connecting shaft (43) drives the second linkage member (42) to move toward the clamping part to drive the clamping part to open; the clamping arm includes A connecting arm (11) is arranged to extend in the same direction as the fixing component (3); A clamping arm (12) is connected to an end of the connecting arm (11) away from the fixing component (3), and the clamping arm (12) extends toward the connecting arm (11) opposite thereto.

2. The clamp according to claim 1, characterized in that Also includes a guide member (311) provided on the mounting portion (31); and A matching portion is provided on the first connecting shaft (43) and matches the guide member (311); the matching portion is plugged into or snapped onto the guide member (311), and the guide member (311) matches the matching portion to guide the movement of the first connecting shaft.

3. The clamp according to claim 2, characterized in that The guide member (311) is a waist hole provided on the two mounting portions (31), and the two ends of the first connecting shaft (43) are respectively inserted into the waist holes; the length of the waist hole satisfies that when the first connecting shaft (43) runs to the waist hole close to one end face of the clamping portion, the opening angle of the two clamping arms is 180°.

4. The clamp according to any one of claims 1 to 3, characterized in that It also includes a locking component (5) provided on the fixing portion (32) and / or the executing portion (2), and the locking component (5) is used to position the executing portion (2) on the fixing portion (32) when the clamping portion is in a closed state.

5. The clamp according to claim 4, characterized in that The locking component (5) is two magnets, and the two magnets are respectively arranged on the fixing part (32) and the execution part (2).

6. The clamp according to claim 5, characterized in that The invention also includes a rotating member (6) rotatably connected to the execution part (2), wherein the rotating member (6) is suitable for being driven by the guide plate to move the magnet provided on the execution part (2) away from the magnet provided on the fixed part (32).

7. A conveying system, characterized in that: The utility model comprises a plurality of clamps and a conveyor belt according to any one of claims 1 to 6, wherein the plurality of clamps are arranged on the conveyor belt at intervals.

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